Weight trainer

ABSTRACT

A weight trainer includes a thermo plastic elastomer and a solid powder, wherein the thermo plastic elastomer and the solid powder are mixed. The mixture is flexible and is tailored to various designs for the weight trainer. The weight trainer containing the mixture can be comfortably held by a hand or can be comfortably put on a hand, wrist, leg, or waist. The internal body in the weight trainer, due to being mixed with the solid powder, has an extremely high density ranging from 0.5 g/cm 3  to 6 g/cm 3 , preferably ranging from 4 g/cm 3  to 6 g/cm 3 , so the weight trainer can have a high weight, even fitted with the internal body in small volume.

This application claims priority under 35 U.S.C. § 119 to ChineseApplication No. 200610002384.6 filed Jan. 27, 2006, the entirety ofwhich is incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention generally relates to a weight trainer. Moreparticularly, the present invention relates to a weight trainercontaining the mixture of a solid powder and a thermo plastic elastomer.

2. Description of the Related Art

In the trend towards health care, weight training is popular and easilyreaches the effect of exercising. If weight training lasts for a longterm, vigorous and graceful muscle can be turned out. Some conventionalweight trainer, made of iron lump, iron powder, iron flake or iron bead,such as dumbbells or a sand bag, is stiff and has a weight of severalpounds or kilograms. The weight trainer, when being slid from a hand,could hurt a body and therefore is specifically unfitted for a child oran older person.

Additionally, in regards to some weight trainers, a metal lump or metalpowder is enclosed by a cloth or rubber package. The weight trainer canbe attached to some portion of the body through a Velcro tape. Becausethe metal lump or metal powder is stiff and has a low flexibility, itcould be uneasy to put the weight trainer on, and uncomfortable could befelt when the weight trainer is put on.

SUMMARY OF THE INVENTION

Accordingly, the present invention provides a weight trainer withheaviness and softness, so hurting a body can be avoided and muscle canbe trained.

To achieve the above advantage and in accordance with the purpose of theinvention, as embodied and broadly described herein, the inventionprovides a weight trainer that includes a thermo plastic elastomer and asolid powder, wherein the thermo plastic elastomer and the solid powderare mixed. The mixture is flexible and is tailored to various designsfor the weight trainer. Besides, the weight trainer containing themixture can be comfortably held by a hand or can be comfortably put on ahand, arm, wrist, leg, ankle or waist. The internal body in the weighttrainer, due to being mixed with the solid powder, has an extremely highdensity ranging from 0.5 g/cm³ to 6 g/cm³, preferably ranging from 4g/cm³ to 6 g/cm³, so the weight trainer can have a high weight, evenfitted with the internal body in small volume.

Preferably, each particle of the solider has a largest transversedimension of less than 100 microns. Preferably, the solid powderincludes iron powder

Preferably, the weight trainer further includes an enclosure, such ascloth or rubber, enclosing an internal body containing the thermoplastic elastomer and the solid powder. The internal body has 60 to 85weight percent of the solid powder, for example.

Preferably, the weight trainer further includes an oil mixed with thethermo plastic elastomer and the solid powder.

It is to be understood that both the foregoing general description andthe following detailed description are exemplary, and are intended toprovide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are included to provide a furtherunderstanding of the invention, and are incorporated in and constitute apart of this specification. The drawings illustrate embodiments of theinvention and, together with the description, serve to explain theprinciples of the invention.

FIG. 1 is a perspective view showing a weight trainer held on a handaccording to a first preferred embodiment of the present invention.

FIGS. 2 and 3 are perspective and cross-sectional views showing anegg-shaped dumbbell according to a first preferred embodiment of thepresent invention.

FIGS. 4 and 5 are perspective and cross-sectional views showing adumbbell according to a second preferred embodiment of the presentinvention.

FIGS. 6 and 7 are perspective and side views showing a dumbbellaccording to a third preferred embodiment of the present invention.

FIGS. 8 and 9 are perspective and cross-sectional views showing adumbbell according to a fourth preferred embodiment of the presentinvention.

FIGS. 10 and 11 are perspective and cross-sectional views showing aweight trainer according to a fifth preferred embodiment of the presentinvention.

FIG. 12 is a perspective view showing a weight trainer put on a wrist orlower arm according to a fifth preferred embodiment of the presentinvention.

FIGS. 13 and 14 are perspective and cross-sectional views showing aweight trainer according to a sixth preferred embodiment of the presentinvention.

FIGS. 15 and 16 are perspective and cross-sectional views showing aweight trainer according to a seventh preferred embodiment of thepresent invention.

FIG. 17 is a perspective view showing a weight trainer put on an ankleor lower leg according to a seventh preferred embodiment of the presentinvention.

FIG. 18 is a perspective view showing a weight trainer according to aneighth preferred embodiment of the present invention.

FIG. 19 is a cross-sectional view showing two main loading parts and arectangular ring of the weight trainer in FIG. 18.

FIGS. 20 and 21 are perspective and cross-sectional views showing aweight trainer according to a ninth preferred embodiment of the presentinvention.

FIGS. 22 and 23 are perspective and side views showing a weight traineraccording to a tenth preferred embodiment of the present invention.

FIGS. 24 and 25 are perspective and cross-sectional views showing aweight trainer according to an eleventh preferred embodiment of thepresent invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Reference will now be made in detail to the present preferredembodiments of the invention, examples of which are illustrated in theaccompanying drawings. Wherever possible, the same reference numbers areused in the drawings and the description to refer to the same or likeparts.

The weight trainer of the present invention used to train the muscle ona hand can be made with a dumbbell shape as shown in drawings. Theweight trainer is soft, so hurting a body can be avoided when the weighttrainer is slid from a hand.

FIG. 1 is a perspective view showing a weight trainer held on a handaccording to a first preferred embodiment of the present invention. Theweight trainer 100 is an egg-shaped dumbbell. The muscle on an arm canbe trained by repeatedly bending the arm at the elbow with holding theegg-shaped dumbbell 100 on a hand 10. Besides, the muscle on fingers canbe trained by repeatedly bending the fingers with pressing theegg-shaped dumbbell 100. FIG. 2 is a perspective view showing theegg-shaped dumbbell 100 according to a first preferred embodiment of thepresent invention. FIG. 3 is a cross-sectional view showing theegg-shaped dumbbell 100 in FIG. 2. The egg-shaped dumbbell 100 includesan enclosure 102 and an internal body 104, wherein the enclosure 102encloses the internal body 104. The internal body 104 is formed byuniformly mixing a thermo plastic rubber or elastomer (TPR or TPE), asolid powder, and an oil. The thermo plastic rubber or elastomer mayinclude polyvinyl chloride (PVC), thermoplastic vulcanizates elastomer(TPV), thermoplastic polyurethene elastomer (TPU), thermoplastic styreneelastomer (TPS), thermoplastic polyester elastomer (TPEE), polyamideelastomer (PAE) or styrene-class thermo plastic elastomer, for example.The styrene-class thermo plastic elastomer may includestyrene-isoprene-styrene block copolymer (SIS),styrene-butadiene-styrene block copolymer (SBS),styrene-ethylene-butadiene-styrene block copolymer (SEBS),styrene-ethylene-propylene-styrene block copolymer (SEPS),styrene-ethylene-styrene block copolymer (SES), styreneic blockcopolymer (SBC), or styrene-butadiene rubber (SBR), for example. Theinternal body 104 has 5 to 20 weight percent of the thermo plasticrubber or elastomer, for example. The oil in the internal body 104 maybe rubber extender oil, industrial oil, white oil, yellow oil or blackoil, for example. The internal body 104 has 10 to 25 weight percent ofthe oil, for example. The solid powder may include iron powder, stonepowder, mineral powder, copper powder, lead powder, tin powder, or somepowder constituted from other metal or inorganic material. The internalbody 104 has 60 to 85 weight percent of the solid powder, for example.In regards to iron powder, each particle of the iron powder has alargest transverse dimension of less than 100 microns, and preferably ofbetween 1 micron and 100 microns, for example. Optionally, the internalbody 104 may include dioctyl phthalate (DOP). The internal body 104 asdescribed above has extremely high density of between 0.5 g/cm³ and 6g/cm³ or between 3 g/cm³ and 6 g/cm³, for example, and preferablybetween 4 g/cm³ and 6 g/cm³. The enclosure 102 may include well ductilerubber and/or well ductile cloth and/or well ductile plastic.

Alternatively, the dumbbell used to be held on a hand may have othershapes, as shown in FIGS. 4 and 5. FIG. 4 is a perspective view showinga dumbbell according to a second preferred embodiment of the presentinvention. FIG. 5 is a cross-sectional view showing the dumbbell in FIG.4. The dumbbell 200 includes a holding stem 202 and two hexagonal-columnends 204 and 206, wherein two opposite ends of the holding stem 202 arerespectively joined with the hexagonal-column ends 204 and 206. Themuscle on an arm can be trained by repeatedly bending the arm at theelbow with holding the holding stem 202 of the dumbbell 200 on a hand.The dumbbell 200 is composed of an enclosure 212 and an internal body214, wherein the enclosure 212 encloses the internal body 214. Theprinciple materials of the enclosure 212 and the internal body 214 arethe same as those of the enclosure 102 and the internal body 104 asdescribed in the first embodiment.

Alternatively, the dumbbell used to be held on a hand may have othershapes, as shown in FIGS. 6 and 7. FIG. 6 is a perspective view showinga dumbbell according to a third preferred embodiment of the presentinvention. FIG. 7 is a side view showing the dumbbell in FIG. 6. Thedumbbell 300 includes a cylinder 302 and a belt 304, wherein two ends ofthe belt 304 are respectively joined with two opposite ends of thecylinder 302. The muscle on an arm can be trained by repeatedly bendingthe arm at the elbow with holding the cylinder 302 of the dumbbell 300on a hand, the belt 304 covering the back of the hand. The cylinder 302of the dumbbell 300 is composed of an enclosure 312 and an internal body314, wherein the enclosure 312 encloses the internal body 314. Theprinciple materials of the enclosure 312 and the internal body 314 arethe same as those of the enclosure 102 and the internal body 104 asdescribed in the first embodiment.

Alternatively, the present invention provides a weight trainer that canbe put on a hand, arm, wrist, leg, ankle or waist to train the muscle ofthe hand, leg or waist. The weight trainer is soft, so hurting a body ordamaging a floor can be avoided when the weight trainer is slid from ahand.

FIG. 8 is a perspective view showing a dumbbell according to a fourthpreferred embodiment of the present invention. FIG. 9 is across-sectional view showing the dumbbell in FIG. 8. The weight trainer400 includes two arc portions 402 and 404, wherein both ends of the arcportions 402 and 404 are connected to each other. Weight training can beperformed with a palm or foot passing through an opening 406 between thearc portions 402 and 404, leading the weight trainer 400 to besurroundingly mounted on a wrist or lower arm, or an ankle or lower leg.The arc portions 402 and 404 of the weight trainer 400 are composed ofan enclosure 412 and an internal body 414, wherein the enclosure 412encloses the internal body 414. The principle materials of the enclosure412 and the internal body 414 are the same as those of the enclosure 102and the internal body 104 as described in the first embodiment.

Alternatively, the weight trainer used to be surroundingly mounted on awrist or lower arm, or an ankle or lower leg may have other shapes, asshown in FIGS. 10 and 11. FIG. 10 is a perspective view showing a weighttrainer according to a fifth preferred embodiment of the presentinvention. FIG. 11 is a cross-sectional view showing the weight trainerin FIG. 10. The weight trainer 500 is ring-shaped. The opening 502 inthe middle of the weight trainer 500 may have a hand 20 passtherethrough. Then, the weight trainer 500 can be surroundingly mountedon a wrist or lower arm of the hand 20, as shown in FIG. 12. FIG. 12 isa perspective view showing a weight trainer put on a hand according to afifth preferred embodiment of the present invention. Alternatively, afoot may pass through the opening 502 in the middle of the weighttrainer 500, and then the weight trainer 500 can be surroundinglymounted on an ankle or lower leg. The weight trainer 500 is composed ofan enclosure 512 and an internal body 514, wherein the enclosure 512encloses the internal body 514. The principle materials of the enclosure512 and the internal body 514 are the same as those of the enclosure 102and the internal body 104 as described in the first embodiment.

Alternatively, another ring-shaped weight trainer may be shown in FIGS.13 and 14. FIG. 13 is a perspective view showing a weight traineraccording to a sixth preferred embodiment of the present invention. FIG.14 is a cross-sectional view showing the weight trainer in FIG. 13. Thering-shaped weight trainer 600 has ball-shaped bumps 602 surrounding anopening 604 in the middle of the weight trainer 600. Fixed intervals arespaced between the ball-shaped bumps 602. A palm may pass through theopening 604 in the middle of the weight trainer 600, and then the weighttrainer 600 can be surroundingly mounted on a wrist or lower arm.Alternatively, a foot may pass through the opening 604 in the middle ofthe weight trainer 600, and then the weight trainer 600 can besurroundingly mounted on an ankle or lower leg. The weight trainer 600is composed of an enclosure 612 and an internal body 614, wherein theenclosure 612 encloses the internal body 614. The principle materials ofthe enclosure 612 and the internal body 614 are the same as those of theenclosure 102 and the internal body 104 as described in the firstembodiment.

FIG. 15 is a perspective view showing a weight trainer according to aseventh preferred embodiment of the present invention. FIG. 16 is across-sectional view showing the weight trainer in FIG. 15. The weighttrainer 700 includes a main loading part 702, a rectangular ring 704 anda Velcro tape 706. The rectangular ring 704 is fixed on an end 702 a ofthe main loading part 702. The Velcro tape 706 has a right side sewed ona top surface 702 c of the main loading part 702 and outwardly extendsfrom the other end 702 b of the main loading part 702. A loop area 708is on a top surface of the Velcro tape 706 close to the main loadingpart 702, that is, on right and middle sides of the Velcro tape 706. Ahook area 710 is on a top surface of the Velcro tape 706 far away fromthe main loading part 702, that is, on a left side of the Velcro tape706. In the process of putting the weight trainer 700 on an ankle orlower leg 30, first putting the lower surface 702 d of the main loadingpart 702 on the ankle or lower leg 30 with surrounding the main loadingpart 702 about the ankle or lower leg 30, next moving the Velcro tape706 to pass through an opening in the middle of the rectangular ring 704and then to turn back, making the hook area 710 be attached onto theloop area 708, as shown in FIG. 17. FIG. 17 is a perspective viewshowing a weight trainer put on an ankle or lower leg according to aseventh preferred embodiment of the present invention. Alternatively,the weight trainer 700 may be put on a hand. In the process of puttingthe weight trainer 700 on a wrist or lower arm, first putting the lowersurface 702 d of the main loading part 702 on the wrist or lower armwith surrounding the main loading part 702 about the wrist or lower arm,next moving the Velcro tape 706 to pass through an opening in the middleof the rectangular ring 704 and then to turn back, making the hook area710 be attached onto the loop area 708. The main loading part 702 of theweight trainer 700 is composed of an enclosure 712 and an internal body714, wherein the enclosure 712 encloses the internal body 714. Theprinciple materials of the enclosure 712 and the internal body 714 arethe same as those of the enclosure 102 and the internal body 104 asdescribed in the first embodiment.

Alternatively, the present invention may provide a weight trainer 800with a pair of main loading parts 802 and 803 shaped like long bars. Themain loading parts 802 and 803 are lined with opposite long edgesneighboring with each other, as shown in FIGS. 18 and 19. FIG. 18 is aperspective view showing a weight trainer according to an eighthpreferred embodiment of the present invention. FIG. 19 is across-sectional view showing two main loading parts and a rectangularring of the weight trainer in FIG. 18. A rectangular ring 804 is put onan end 802 a and 803 a of the opposite short edges of the main loadingparts 802 and 803. A Velcro tape 806 has a right side with a back sewedon a top surface 802 c and 803 c of the main loading parts 802 and 803and outwardly extends from the other ends 802 b and 803 b of theopposite short edges of the main loading parts 802 and 803. A loop area808 is on an upper surface of the Velcro tape 806 close to the mainloading parts 802 and 803, that is, on middle and right sides of theVelcro tape 806. A hook area 810 is on an upper surface of the Velcrotape 806 far away from the main loading parts 802 and 803, that is, on aleft side of the Velcro tape 806. In the process of putting the weighttrainer 800 on some portion of a body, such as wrist, lower arm, ankleor lower leg, first putting the lower surface of the main loading parts802 and 803 on the wrist, lower arm, ankle or lower leg, withsurrounding the main loading parts 802 and 803 about the wrist, lowerarm, ankle or lower leg, next moving the Velcro tape 806 to pass throughan opening in the middle of the rectangular ring 804 and then to turnback, making the hook area 810 be attached onto the loop area 808. Themain loading parts 802 and 803 of the weight trainer 800 are composed ofan enclosure 812 and an internal body 814, wherein the enclosure 812encloses the internal body 814. The principle materials of the enclosure812 and the internal body 814 are the same as those of the enclosure 102and the internal body 104 as described in the first embodiment.

Alternatively, the present invention may provide a weight trainer 900with a multiplicity of main loading parts 901, 902, 903, 904 and 905shaped like long and flat bodies. The main loading parts 901, 902, 903,904 and 905 are lined with opposite long edges neighboring with eachother, as shown in FIGS. 20 and 21. FIG. 20 is a perspective viewshowing a weight trainer according to a ninth preferred embodiment ofthe present invention. FIG. 21 is a cross-sectional view showing theweight trainer in FIG. 20. A Velcro tape 906 is connected to theleftmost main loading part 901. A hook area 910 is on a top surface ofthe Velcro tape 906. A loop area 908 is on a lower surface of the tworightmost main loading parts 904 and 905. In the process of putting theweight trainer 900 on some portion of a body, such as wrist, lower arm,ankle, lower leg or waist, first putting the upper surface of the mainloading parts 901, 902, 903, 904 and 905 on the wrist, lower arm, ankle,lower leg or waist, with surrounding the main loading parts 901, 902,903, 904 and 905 about the wrist, lower arm, ankle, lower leg or waist,next moving the Velcro tape 906 to make the hook area 910 be attachedonto the loop area 908. The main loading parts 901, 902, 903, 904 and905 of the weight trainer 900 are composed of an enclosure 912 and aninternal body 914, wherein the enclosure 912 encloses the internal body914. The principle materials of the enclosure 912 and the internal body914 are the same as those of the enclosure 102 and the internal body 104as described in the first embodiment.

Alternatively, the present invention may provide a glove-shaped weighttrainer 1000, as shown in FIGS. 22 and 23. FIG. 22 is a perspective viewshowing a weight trainer according to a tenth preferred embodiment ofthe present invention. FIG. 23 is a cross-sectional view showing theweight trainer in FIG. 22. The weight trainer 1000 may include fourfinger stalls 1001, 1002, 1003 and 1004 used to have fingers passtherethrough. The finger stalls 1001, 1002, 1003 and 1004 are lined onan upper side of the weight trainer 1000. The openings in the fingerstalls 1001, 1002, 1003 and 1004 may allow an index finger, middlefinger, ring finger and little finger of a left hand to passtherethrough, respectively, or may allow a little finger, ring finger,middle finger and index finger of a right hand to pass therethrough,respectively. A rectangular ring 1005 is mounted on a left wing of theglove-shaped weight trainer 1000. A Velcro tape 1006 outwardly extendsfrom a right wing of the glove-shaped weight trainer 1000. A mainloading part 1007 is sewed on an outer surface of the glove-shapedweight trainer 1000. In the process of putting the weight trainer 1000on a left of right palm, first moving the index finger, middle finger,ring finger and little finger of the left palm to pass through openingsin the middle of the finger stalls 1001, 1002, 1003 and 1004 or movingthe little finger, ring finger, middle finger and index finger of theright palm to pass through openings in the middle of the finger stalls1001, 1002, 1003 and 1004, making the back of the left or right palmlean against the inner surface of the weight trainer 1000, next movingthe Velcro tape 1006 to pass through an opening in the middle of therectangular ring 1005 and then to turn back, making an hook area on alower surface of the Velcro tape 1006 be attached onto a loop area 908around the bottom end of the weight trainer 1000. The main loading part1007 of the weight trainer 1000 is composed of an enclosure 1012 and aninternal body 1014, wherein the enclosure 1012 encloses the internalbody 1014. The principle materials of the enclosure 1012 and theinternal body 1014 are the same as those of the enclosure 102 and theinternal body 104 as described in the first embodiment.

Alternatively, the present invention may provide a weight trainer 1100as shown in FIGS. 24 and 25. FIG. 24 is a perspective view showing aweight trainer according to an eleventh preferred embodiment of thepresent invention. FIG. 25 is a cross-sectional view showing the weighttrainer in FIG. 24. The weight trainer 1100 may include a main loadingpart 1102 with a recess portion 1103 in which the part between a thumband an index finger of a left or right hand can be put. A Velcro tape1104 is connected to a left edge of the main loading part 1102 andleftward extends from the left side of the main loading part 1102. AVelcro tape 1105 is connected to a bottom edge of a left part of themain loading part 1102 and rightward extends from the bottom edge of theleft part of the main loading part 1102. A Velcro tape 1106 is connectedto a bottom edge of a right part of the main loading part 1102 andrightward extends from the bottom edge of the right part of the mainloading part 1102. Multiple hook areas 1107, 1108 and 1109 are on alower surface of the Velcro tapes 1104, 1105 and 1106, respectively.Multiple loop areas 1110, 1111 and 1112 are on a right side of the mainloading part 1102, and on the Velcro tapes 1105 and 1106, respectively.The hook areas 1107, 1108 and 1109 are adapted to be attached onto theloop areas 1110, 1111 and 1112, respectively. In the process of puttingthe weight trainer 1100 on a left of right palm, first putting the partbetween the thumb and the index finger of the left or right palm on therecess portion 1103 of the main loading part 1102, next bending the mainloading part 1102 with moving the left and right parts of the mainloading part 1102 to the back and center portions of the left palmrespectively, or with moving the left and right parts of the mainloading part 1102 to the center and back portions of the right palmrespectively, next moving the Velcro tapes 1104, 1105 and 1106 to attachthe hook areas 1107, 1108 and 1109 onto the loop areas 1110, 1111 and1112. The main loading part 1102 of the weight trainer 1100 is composedof an enclosure 1013 and an internal body 1114, wherein the enclosure1113 encloses the internal body 1114. The principle materials of theenclosure 1113 and the internal body 1114 are the same as those of theenclosure 102 and the internal body 104 as described in the firstembodiment.

To sum up, each weight trainer disclosed in the present inventionincludes a thermo plastic elastomer and a solid powder, wherein thethermo plastic elastomer and the solid powder are mixed. The mixture istailored to various designs for the weight trainer. The weight trainercontaining the mixture can be comfortably held by a hand or can becomfortably put on a hand, wrist, leg, or waist. The internal body inthe weight trainer, due to being mixed with the solid powder, has anextremely high density ranging from 0.5 g/cm³ to 6 g/cm³, preferablyranging from 4 g/cm³ to 6 g/cm³, so the weight trainer can have a highweight, even fitted with the internal body in small volume.

It will be apparent to those skilled in the art that variousmodifications and variations can be made to the structure of the presentinvention without departing from the scope or spirit of the invention.In view of the foregoing, it is intended that the present inventioncover modifications and variations of this invention provided they fallwithin the scope of the following claims and their equivalents.

1. A weight trainer comprising: a thermo plastic elastomer; and a solidpowder mixed with said thermo plastic elastomer.
 2. The weight trainerof claim 1 is used to be held on a hand.
 3. The weight trainer of claim1 is used to be put on a portion of a human body.
 4. The weight trainerof claim 1, wherein each particle of said solid powder has a largesttransverse dimension of less than 100 microns.
 5. The weight trainer ofclaim 1 further comprising an enclosure enclosing the mixture of saidthermo plastic elastomer and said solid powder.
 6. The weight trainer ofclaim 1, wherein the mixture containing said thermo plastic elastomerand said solid powder has 60 to 85 weight percent of said solid powder.7. The weight trainer of claim 1, wherein the mixture containing saidthermo plastic elastomer and said solid powder has 5 to 20 weightpercent of said thermo plastic elastomer.
 8. The weight trainer of claim1, wherein said solid powder comprises a metal powder.
 9. The weighttrainer of claim 1, wherein said solid powder comprises iron powder. 10.The weight trainer of claim 1, wherein said solid powder comprisespowder of an inorganic material.
 11. The weight trainer of claim 1further comprising an oil mixed with said thermo plastic elastomer andsaid solid powder.
 12. A weight trainer comprising: a plastic; and asolid powder mixed with said plastic, wherein the mixture containingsaid plastic and said solid powder has a density of greater than 3g/cm³.
 13. The weight trainer of claim 12, wherein said mixture has adensity of greater than 4 g/cm³.
 14. The weight trainer of claim 12,wherein said plastic comprises a thermo plastic elastomer.
 15. Theweight trainer of claim 12, wherein said solid powder comprises a metalpowder.
 16. The weight trainer of claim 12, wherein said solid powdercomprises iron powder.
 17. The weight trainer of claim 12, wherein saidsolid powder comprises powder of an inorganic material.
 18. The weighttrainer of claim 12, wherein the mixture containing said thermo plasticelastomer and said solid powder has 60 to 85 weight percent of saidsolid powder.
 19. The weight trainer of claim 12 is used be held by ahand.
 20. The weight trainer of claim 12 is used be put on a portion ofa human body.